Caliber: 17 HMR – Stock: Black Synthetic – Capacity: 9 – Overall Length: 37 – Barrel Length: 18 – Front Sight: None – Rear Sight: None – Thread Pattern: 1/2-28 – Length of Pull: 13.75 – Weight: 5.3 lb. – Material: 416 Stainless Steel – Finish: Satin Stainless – Twist: 1:9 RH – Grooves: 6 – Includes interchangeable standard length of pull high comb stock module ideal for use with optics. By simply removing the rear sling swivel stud stock module can be changed in seconds. Compact stock modules are available at ShopRuger.com. – Features detachable flush-mounted JMX-1 9-round rotary magazine – Easy-to-use 10/22®-style extended magazine release provides smooth no-fuss removal of flush-mounted magazine. – Patent-pending Power Bedding® integral bedding block system positively locates the receiver and free-floats the barrel for outstanding accuracy. – Ruger Marksman Adjustable™ trigger offers a crisp release with a pull weight that is user adjustable between 3 and 5 pounds allowing shooters to make that perfect shot. – Features a visible accessible and easy-to-actuate tang safety that provides instant security. – Cold hammer-forged barrel results in ultra-precise rifling that provides exceptional accuracy longevity and easy cleaning. – Factory-Installed One-Piece Aluminum Scope Rail – A 60° bolt provides ample scope clearance and the easy-to-use receiver-mounted bolt release allows the bolt to be readily removed without requiring a pull of the trigger a unique safety feature among rimfire bolt-action rifles. – Ergonomic lightweight black synthetic stock (designed for quick easy handling) blends a classic look with modern forend contouring and grip serrations.